Fuel burner



ug. 18, 1934.1. A. FERNANDEZ Y FERNANDZ 1,819,363

FUEL BURNER 1 Filed Sept. 3. 1929 oa a a Dugnano ma F. L l;

Patented Aug. 18, 1931 UNITED STATES PATENT oFF-ier.

FUEL BURNER Application led September 3, 1929, Serial No. 390,174, and in Cuba September 18, 1928.y

rlhis invention relates to a fuel burner; and more particularly, to a burner of the type utilizing vaporized fuel.

The principal object is to provide a burner which will do away with the usual wick and at the same time will have a preheating charnber that will greatly facilitate the vaporizing of the fuel. Various means have been designed for positively conveying either the fuel or vapor to a burner portion, but it is believed that the use of loose wires in the manner arranged in my construction is far superior to any of the other devices.

Another object is to provide means for controlling the mixing of air with the vaporized fuel so as to obtain the maximum of heat from the fuel used.

Other objects will be shown in the specification and drawings, made a part of this application.

In the drawings: Figure l is a perspective of the entire burner;

Figure 2 is a vertical section taken on the line 2 2 of Figure 3;

Figure 3 is a top plan of the burner showing the wires in position;

Figure 4 is a perspective of the inner tube removed from the burner acket. 3o

moved from the inner tube; and

Figure 6 is a cross section taken on line 8 6 of Figure 2.

Referring to the drawings, in which like parts are designated by similar numerals: Numeral 1 designates a burner having an outer jacket 2, and a base 3 in the form of a fuel reservoir 4. A fuel inlet pipe 5 leads into the reservoir 4. Adjacent the top edge 6 of the jacket 2, and encircling the same, is a trough or well 7 to receive a preheating fuel 8. Extending up through the burner 1 is an inner tube 9, having a neck 10, containing u openings 11. Around the bottom portion 12 of the inner tube 9 are elongated slots 13. Encircling the bottom portion 12 is a muff 14 having elongated slots 15, which coincide with the slots 13 in the bottom portion 12 of the inner tube 9. Extending into the reser- "9 voir 4 are a number of loose wires 16, which Figure 5 is a perspective of the muff re-.

act as a wick and extend above the well or trough 7 to the top of the innerV tube 9. A plate 17 closes the inner tube 9, with the exception of air vents v18. f As actually operated, the reservoir 4 willv be filled with a vaporous fuel from the pipe 5. A small quantity of fuel 8 will be placed in the trough or Well 7 and ignited. The ignited fuel will heat the upper ends of wires 16, and by way of conduction7 t-he entire length of wires will be heated, thus heating the fuel in the reservoir 4 and causing the same to vaporize. wires 16 and will becomeignited at the upper ends of the wires adjacent the well or trough 7 As soon as the wires 1G have become suiiciently heated, andthe vapor ignited, the trough or well 7 will no longer be needed, and the fuel therein will be allowed.

to burn out, only enough being placed therein y r' to'serve the function of preheating.

The muif 14 controls the flow of air through the inner tube 9, which has a direct bearing on the type of flame producedmuch in the same manner as that produced in a Bunsen burner. The air will pass from the inner tube 9 out through the openings 11 in the'neck 10 and mixV with the vaporized fuel. Y A slight turn of the muif 14. will open or close the elongated slots 13 in the inner tube 9. y

The use of loose wires 16 serves the double purpose of vaporiz'ing the fuel in the reservoir 4 and providing interstices to convey the vaporized fuel to the point of ignition. This produces a very eflicient and simple structure, whereby a very hot flame will be produced.

I do not intend to limit myself to the particular structure shown in my application, as other means may be employed without departing from the scope of my invention.

What I claim is:

1. A burner comprising a fuel reservoir; an outer tube extending from the reservoir; an inner tube extending through the outer tube, providing an air passage; wires filling the space between the outer and inner tubes and reaching into the reservoir; and means .intermediate the ends of the outer tube for di- The vapor will ascend along the verting air from the inner tube into the interstices between the wires.

2. A burner comprising a fuel reservoir; a vapor tube extending from the reservoir; an air tube extending through the vapor tube, having an outlet within the vapor tube; heet conducting wires filling the space between the vapor tube and the air tube and rea-ching into the reservoir to vaporize liquid fuel; anda head adapted to divert air passing through the air tube into the interstices between thev wires.

3. The saine structure as claim 2 and a priming fuel cup for heating the wiresk to start vaporization of fuel in the reservoir.

4. burner comprising a fuel reservoir; a vapor tube extending upwardly from the reservoir; an air tube extending through the vapor tube, having@ side outlet below the top of the vapor tube; a bundle of loose parallel wires filling the space between the vapor tube and air tube7 florined of a good heat Conducting metal for conducting heat down to ver porize liquid fuelin the reservoir and providing interstiees between the wires for the fuel vapor to pass up to a combustion Zone above the vapor tube; and a perforated head in the air tube adapted to allow portions of V`air rising through the air tube topass directly to the combustion IZone to divert other portions through the side outlet into the interstiees between the wires.

5. The saine structure as claim 4c and a valved air inlet at the bottone of the air tube.

6. A burner comprising a fuel reservoir; a vapor tubevextending from the reservoir; an air tube extending through the vapor tube; a neck forming a part of the air tube having an air outlet and dividing the air tube into a lower cylinder and an upper cylinder; wires filling the space between the vapor tube and air tube; a. head forming the top of the upper cylinder; having an air outlet; and a head Connected to the neck and forming the bottoni of the upper cylinder, adapted to divert air from the neck outlet into the interstiees between the wires.

In testimony whereof I aHiX in v signature.

ATAULFO FERNANDEZ y FERNANDEZ. 

